Update Kokkos library in LAMMPS to v4.2

lib/kokkos/core/unit_test/TestMinMaxClamp.hpp

@@ -174,10 +174,6 @@ TEST(TEST_CATEGORY, minmax) {
   EXPECT_EQ(r2.first, 2);
   EXPECT_EQ(r2.second, 3);
 
-#ifndef KOKKOS_COMPILER_NVHPC  // FIXME_NVHPC nvhpc can't deal with device side
-                               // constexpr constructors so I removed the
-                               // constexpr in pair, which makes static_assert
-                               // here fail
   static_assert((Kokkos::pair<float, float>(Kokkos::minmax(3.f, 2.f)) ==
                  Kokkos::make_pair(2.f, 3.f)));
   static_assert(
@@ -208,7 +204,6 @@ TEST(TEST_CATEGORY, minmax) {
                                    ::Test::PairIntCompareFirst{0, 5},
                                })
                     .second.second == 4);  // rightmost
-#endif
 }
 
 template <class ViewType>